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Nov 18, 2025

Nov 18, 2025

Nov 18, 2025

Responsible digital technology, how to transform digital pollution into a strategic opportunity?

The responsible digital has become an unavoidable issue for businesses, local authorities, and decision-makers. While the information technology and digital sector represents 4.4% of the French carbon footprint and 3 to 4% of global greenhouse gas emissions, its impact is growing at an alarming rate. Without immediate action, this share could double within ten years, matching entire sectors such as civil aviation.


Yet, this alarming reality hides a major opportunity: organizations that transform their digital operations into a ecological, economic, and strategic asset strengthen their competitiveness, reduce their operational costs, and reinforce their legitimacy with stakeholders.


The real cost of digital: beyond appearances


Data centers: the hidden face of digital


Data centers are the second-largest source of pollution in the digital sector, after the manufacturing of equipment. They alone represent 2 to 3% of global electricity consumption, equivalent to the energy consumption of countries like Argentina or Poland.


The figures are staggering:

  • 600,000 m³ of water consumed per year for a standard data center — equivalent to 6.5 Olympic-sized swimming pools daily.

  • 40% of the energy used for simple cooling, a necessity due to continuous ventilation needs.

  • 77% of over-equipped servers, revealing a massive inefficiency in infrastructure.


In France, data centers account for 2.5% of the national digital carbon footprint according to ADEME, while globally they generate about 1% of global CO₂ emissions. And this impact is worsening: by 2025, energy efficiency (PUE) dropped from 76% to 74% in one year, reflecting a degradation of performance.


Beyond data centers: the complete lifecycle


70% of the digital carbon footprint comes from equipment manufacturing: computers, phones, servers, fiber optic cables. This is further compounded by:

  • Planned obsolescence: equipment is renewed every 3 to 4 years on average, while they could function for 8 to 10 years,

  • Increasing usage: HD video, augmented reality, artificial intelligence (a ChatGPT query consumes 0.34 watt-hours and 0.32 ml of water),

  • Electronic waste: chemical pollution, loss of precious metals, impacts on biodiversity.

Regulatory Framework: Obligations That Become Leverage


The REEN Law: Catalyst for Transformation


Since 2021, the REEN Law (Reducing the Environmental Footprint of Digital Technology) imposes a structured transition towards a sustainable digital approach for public and private actors. Its key obligations:​

  • Article 35 — Local Authorities: municipalities and EPCI with over 50,000 inhabitants must adopt a responsible digital strategy with measurable objectives and an action plan by January 1, 2025. More than 85 local authorities are affected.​

  • Companies and Digital Providers: obligation to establish a environmental footprint reduction strategy, to measure energy consumption and direct/indirect impacts of their digital activities.​

  • Focus on Lifespan: extend the lifespan of equipment, prioritize reuse and repair, and recycle equipment that is 10 years old or less through appropriate channels.​


Far from being a constraint, this law creates a incentive framework: organizations that anticipate gain operational efficiency and demonstrate their CSR commitment.


The Three Pillars of Responsible Digital Technology


1. Green IT: Optimize Infrastructures


Sustainable IT (Green IT) aims to reduce the carbon footprint of IT assets and infrastructures. The key levers:​

  • Server Virtualization: concentrating multiple services on a single physical server reduces the number of pieces of equipment, energy, space, and maintenance,

  • Cooling Optimization: deploying free cooling systems, using ambient air, or recycling waste heat can reduce the carbon footprint by up to 40%,​

  • Measuring and Managing PUE (Power Usage Effectiveness): a fundamental indicator for monitoring the energy efficiency of data centers,

  • Energy Self-Consumption: installing solar panels or wind turbines to power infrastructures and reduce dependence on the public grid and CO₂ emissions.​


Concrete examples: in Paris, a data center from Stimergy provides heating for a residential building. In Zurich, IBM's data center heats an entire neighborhood.​


2. IT For Green: Using Digital Technology to Drive the Transition


Paradoxically, digital technology is also a powerful tool for driving the ecological transition of other sectors. Local authorities and companies use digital platforms to:

  • Centralize and Govern Environmental Data (energy, water, waste, carbon, climate risks),

  • Automate Reporting compliant with CSRD, BEGES, PCAET standards,

  • Monitor in Real-Time their consumption and impacts via environmental dashboards,

  • Simulate and Optimize their transition pathways.


ThinkCities embodies this approach: by centralizing key environmental data, it allows local authorities and asset managers to reduce costs, accelerate regulatory compliance, and demonstrate the real impact of each environmental investment.


3. Ecodesign: Limit Impact from the Design Stage


Software Ecodesign reduces the carbon footprint of digital services right from the source:​

  • Simplify Interfaces: lighten web pages, reduce unnecessary animations,

  • Limit Data Transfers: decrease file size and complexity,

  • Optimize Performance: more efficient code = reduced energy consumption,

  • Extend Lifespan: design sustainable services, not ephemeral gadgets.

Economic and Strategic Opportunities


Concrete Financial Gains


Reducing the digital footprint generates significant gains:

  • Reduction in energy bills through infrastructure optimization,

  • Extended lifespan of equipment = fewer purchases, less maintenance costs,

  • Reuse of components: OVHcloud reuses 25 to 36% of its server components, avoiding 17,000 tons of CO₂ per year.


Competitive Advantage and Legitimacy


Organizations that have adopted a responsible digital strategy strengthen:

  • Their attractiveness to talent: employees seek meaning,

  • Investor trust: ESG criteria influence funding decisions,

  • Customer loyalty: 70% of consumers value environmental commitment,

  • Regulatory compliance: anticipation of CSRD developments, reporting beyond legal requirements.


Conclusion: From Observation to Action


The digital will not disappear. But its trajectory can change. Organizations that transform this urgency into a proactive strategy for sobriety, efficiency, and responsible innovation will be the leaders of tomorrow.


Structuring environmental data, measuring the actual impact of digital technology, optimizing infrastructures, extending the lifespan of equipment: these are not imposed constraints, but catalysts for transformation towards a more sustainable, more efficient, and more profitable model.


The REEN law, climate objectives, and pressure from stakeholders now provide a unique window of opportunity. Those who act today will enable themselves to effectively manage their transition, prove their impacts, and stand out in a context where environmental responsibility becomes an essential competitive criterion.

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